Technical note: An improved range chart
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Pandu Tadikamalla; Mihai Banciu; Dana Popescu
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Article
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2008
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John Wiley and Sons
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English
β 182 KB
## Abstract The distribution of the range of a sample, even in the case of a normal distribution, is not symmetric. Shewhart's control chart for range and other approximations for range from skewed distributions and longβtailed (leptokurtic) symmetrical distributions assume the distribution of rang